Question

An object begins with a speed of 20 meters per second and slows down to a speed of 10 meters per second over a time of 5 seconds. Calculate the average speed of the object during these 5 seconds.
can someone tell me how to do this please?

Answer 1

Answer:

V = 6 m/s

Explanation:

Given that,

Initial speed of an object is 20 m/s

Final speed of an object is 10 m/s

Time, t = 5 s

We need to find the average speed of the object during these 5 seconds. Let it is equal to V. Here, time is same. The average speed is given by :

$V=\dfrac{x+y}{2}\\\\\text{Putting values}\\\\V=\dfrac{20+10}{5}\\\\V=6\ m/s$

So, the average speed of the object is 6 m/s.